diff --git a/Classes/PHPExcel/Shared/CodePage.php b/Classes/PHPExcel/Shared/CodePage.php
index 01e0ea4..89e2d19 100644
--- a/Classes/PHPExcel/Shared/CodePage.php
+++ b/Classes/PHPExcel/Shared/CodePage.php
@@ -92,6 +92,7 @@ class PHPExcel_Shared_CodePage
 			case 10029:	return 'MACCENTRALEUROPE';		break;	//	Macintosh Central Europe
 			case 10079:	return 'MACICELAND';			break;	//	Macintosh Icelandic
 			case 10081:	return 'MACTURKISH';			break;	//	Macintosh Turkish
+			case 21010:	return 'UTF-16LE';			break;	//	UTF-16 (BIFF8) This isn't correct, but some Excel writer libraries erroneously use Codepage 21010 for UTF-16LE
 			case 32768:	return 'MAC';				break;	//	Apple Roman
 			case 32769:	throw new PHPExcel_Exception('Code page 32769 not supported.');
 													break;	//	ANSI Latin I (BIFF2-BIFF3)
diff --git a/changelog.txt b/changelog.txt
index ed9eaa6..ac3cab2 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -42,6 +42,7 @@ Planned for v1.8.1
 - General:  (MBaker)          Work Item GH-394  - DefaultValueBinder is too much aggressive when converting string to numeric
 - General:  (MBaker)                            - Default precalculate formulas to false for writers
 - General:  (MBaker)                            - Set default Cyclic Reference behaviour to 1 to eliminate exception when using a single cyclic iteration in formulae
+- General:  (MBaker)                            - Some Excel writer libraries erroneously use Codepage 21010 for UTF-16LE
 - Feature:  (WiktrzGE)        Work Item GH-404  - Methods to manage most of the existing options for Chart Axis, Major Grid-lines and Minor Grid-lines
 - Feature:  (frost-nzcr4)     Work Item GH-403  - ODS read/write comments in the cell
 - Feature:  (CQD)             Work Item GH-389  - Additional Mac CJK codepage definitions